Sat May 4 05:44:25 1996 Roland McGrath <roland@delasyd.gnu.ai.mit.edu>

	* hurd/hurd-raise.c (_hurd_raise_signal): Pass sigcode in msg_sig_post
	rpc.

	* hurd/hurdmsg.c (_S_msg_set_environment): Use argz.h functions
	instead of _hurd_split_args.
	(_S_msg_*_exec_flags): Functions removed.
	(_S_msg_startup_dosync): Stub removed.

Sat May  4 02:11:55 1996  Roland McGrath  <roland@delasyd.gnu.ai.mit.edu>

	* sysdeps/mach/hurd/ptrace.c: Set _hurdsig_traced instead of
	EXEC_TRACED bit in _hurd_exec_flags.
	Pass sigcode arg in msg_sig_post_untraced rpc.

	* sysdeps/mach/hurd/access.c: Don't pass io port in
	auth_user_authenticate rpc.

	* posix/sched.h: Fix typos.

	* sysdeps/mach/hurd/fork.c: Use new critical section lock.
	Clear _hurdsig_traced instead of EXEC_TRACED.

	* sysdeps/stub/nanosleep.c (nanosleep): Fix typo.

	* wcsmbs/wcstol.c: Find strtol.c in ../stdlib.
	* wcsmbs/wcstof.c: Find strtod.c in ../stdlib.
	* wcsmbs/wcstod.c: Likewise.
	* wcsmbs/wcstold.c: Likewise.

	* wcsmbs/wcwidth.h: Find cname-lookup.h in ../wctype.

	* string/envz.c (envz_entry): Use const.
	(envz_get, envz_remove): Likewise.
	(envz_entry): Return char *, not const char *.

	* string/envz.h: Fix decl.

	* string/argz-create.c: Use const in prototype.
	* string/argz-next.c: Likewise.

	* sysdeps/mach/hurd/sigprocmask.c: Pass sigcode arg to msg_sig_post.
	* sysdeps/mach/hurd/i386/sigreturn.c: Likewise.
	* sysdeps/mach/hurd/sigsuspend.c: Likewise.
	* sysdeps/mach/hurd/kill.c: Likewise.

	* hurd/hurdexec.c (_hurd_exec): Use new critical section lock.
	* hurd/catch-exc.c (_S_catch_exception_raise): Likewise.
	* hurd/sigunwind.c (_hurdsig_longjmp_from_handler): Likewise.
	* hurd/thread-cancel.c (hurd_thread_cancel, hurd_check_cancel):
	Likewise.
	* sysdeps/mach/hurd/jmp-unwind.c (_longjmp_unwind): Likewise.
	* sysdeps/mach/hurd/sigaction.c: Likewise.

	* sysdeps/mach/hurd/errnos.awk: Don't use ARGV in comment; it can
	change meaninglessly.

	* hurd/hurd/signal.h (struct hurd_sigstate): Replace critical section
 	flag with a spin lock.
	(_hurd_critical_section_lock): Use spin_try_lock on that to see if we
 	get it.  No need to take SS->lock at all.
	(_hurd_critical_section_unlock): Unlock SS->critical_section_lock
	instead of clearing the old flag member.
	* hurd/hurdsig.c (_hurd_internal_post_signal): Use spin_lock_locked to
	test the critical section state.

	* hurd/hurdinit.c (_hurd_init): Set _hurdsig_traced from the intarray.

	* hurd/hurdkill.c (_hurd_sig_post): Pass 0 sigcode in msg_sig_post.

	* hurd/hurdsig.c (_hurd_internal_post_signal): Test _hurdsig_traced
 	instead of testing (_hurd_exec_flags & EXEC_TRACED).
	(_S_msg_sig_post): Take sigcode arg and pass it through.
	(_S_msg_sig_post_untraced): Likewise.
	(reauth_proc): Don't pass proc port in auth_user_authenticate.

	* hurd/setauth.c (_hurd_setauth): Don't pass object ports in
	auth_user_authenticate RPCs, just the one-off rendezvous port.
	* hurd/dtable.c (reauth_dtable): Likewise.
	* hurd/hurdlookup.c (__hurd_file_name_lookup_retry): Likewise.

	* hurd/hurdexec.c (_hurd_exec): Pass 0 flags to file_exec.
	Pass sigcode arg to msg_sig_post.

	* string/argz.h (argz_create): Use const in prototype.

	* hurd/hurdinit.c (_hurd_proc_init): Test _hurdsig_traced instead of
	testing (_hurd_exec_flags & EXEC_TRACED).
	Pass sigcode arg to msg_sig_post.

	* hurd/hurd.h: Declare _hurdsig_traced.

	* string/argz.h (__argz_next): Cast ENTRY before returning it.

	* hurd/hurd/signal.h (_hurd_critical_section_unlock): Pass sigcode arg
	to msg_sig_post.

	* hurd/path-lookup.c: New file.
	* hurd/Makefile (routines): Add path-lookup.
	* hurd/hurd/lookup.h: Declare file_name_path_scan,
	hurd_file_name_path_lookup.
	* hurd/hurd.h: Declare file_name_path_lookup.

	* sysdeps/mach/hurd/select.c: The io_select rpc no longer has a TAG_ID
	argument.  Instead, use a separate reply port for each RPC and put them
	all in a port set to wait for slow replies.

42 files changed, 526 insertions, 306 deletions

diff --git a/ChangeLog b/ChangeLog
index b4b82d9d47..7bb59dbbd6 100644
--- a/ChangeLog
+++ b/ChangeLog
@@ -1,5 +1,113 @@
+Sat May  4 05:44:25 1996  Roland McGrath  <roland@delasyd.gnu.ai.mit.edu>
+
+	* hurd/hurd-raise.c (_hurd_raise_signal): Pass sigcode in msg_sig_post
+	rpc.
+
+	* hurd/hurdmsg.c (_S_msg_set_environment): Use argz.h functions
+	instead of _hurd_split_args.
+	(_S_msg_*_exec_flags): Functions removed.
+	(_S_msg_startup_dosync): Stub removed.
+
+Sat May  4 02:11:55 1996  Roland McGrath  <roland@delasyd.gnu.ai.mit.edu>
+
+	* sysdeps/mach/hurd/ptrace.c: Set _hurdsig_traced instead of
+	EXEC_TRACED bit in _hurd_exec_flags.
+	Pass sigcode arg in msg_sig_post_untraced rpc.
+
+	* sysdeps/mach/hurd/access.c: Don't pass io port in
+	auth_user_authenticate rpc.
+
+	* posix/sched.h: Fix typos.
+
+	* sysdeps/mach/hurd/fork.c: Use new critical section lock.
+	Clear _hurdsig_traced instead of EXEC_TRACED.
+
+	* sysdeps/stub/nanosleep.c (nanosleep): Fix typo.
+
+	* wcsmbs/wcstol.c: Find strtol.c in ../stdlib.
+	* wcsmbs/wcstof.c: Find strtod.c in ../stdlib.
+	* wcsmbs/wcstod.c: Likewise.
+	* wcsmbs/wcstold.c: Likewise.
+
+	* wcsmbs/wcwidth.h: Find cname-lookup.h in ../wctype.
+
+	* string/envz.c (envz_entry): Use const.
+	(envz_get, envz_remove): Likewise.
+	(envz_entry): Return char *, not const char *.
+
+	* string/envz.h: Fix decl.
+
+	* string/argz-create.c: Use const in prototype.
+	* string/argz-next.c: Likewise.
+
 Fri May  3 13:32:08 1996  Roland McGrath  <roland@delasyd.gnu.ai.mit.edu>
 
+	* sysdeps/mach/hurd/sigprocmask.c: Pass sigcode arg to msg_sig_post.
+	* sysdeps/mach/hurd/i386/sigreturn.c: Likewise.
+	* sysdeps/mach/hurd/sigsuspend.c: Likewise.
+	* sysdeps/mach/hurd/kill.c: Likewise.
+
+	* hurd/hurdexec.c (_hurd_exec): Use new critical section lock.
+	* hurd/catch-exc.c (_S_catch_exception_raise): Likewise.
+	* hurd/sigunwind.c (_hurdsig_longjmp_from_handler): Likewise.
+	* hurd/thread-cancel.c (hurd_thread_cancel, hurd_check_cancel):
+	Likewise.
+	* sysdeps/mach/hurd/jmp-unwind.c (_longjmp_unwind): Likewise.
+	* sysdeps/mach/hurd/sigaction.c: Likewise.
+
+	* sysdeps/mach/hurd/errnos.awk: Don't use ARGV in comment; it can
+	change meaninglessly.
+
+	* hurd/hurd/signal.h (struct hurd_sigstate): Replace critical section
+ 	flag with a spin lock.
+	(_hurd_critical_section_lock): Use spin_try_lock on that to see if we
+ 	get it.  No need to take SS->lock at all.
+	(_hurd_critical_section_unlock): Unlock SS->critical_section_lock
+	instead of clearing the old flag member.
+	* hurd/hurdsig.c (_hurd_internal_post_signal): Use spin_lock_locked to
+	test the critical section state.
+
+	* hurd/hurdinit.c (_hurd_init): Set _hurdsig_traced from the intarray.
+
+	* hurd/hurdkill.c (_hurd_sig_post): Pass 0 sigcode in msg_sig_post.
+
+	* hurd/hurdsig.c (_hurd_internal_post_signal): Test _hurdsig_traced
+ 	instead of testing (_hurd_exec_flags & EXEC_TRACED).
+	(_S_msg_sig_post): Take sigcode arg and pass it through.
+	(_S_msg_sig_post_untraced): Likewise.
+	(reauth_proc): Don't pass proc port in auth_user_authenticate.
+
+	* hurd/setauth.c (_hurd_setauth): Don't pass object ports in
+	auth_user_authenticate RPCs, just the one-off rendezvous port.
+	* hurd/dtable.c (reauth_dtable): Likewise.
+	* hurd/hurdlookup.c (__hurd_file_name_lookup_retry): Likewise.
+
+	* hurd/hurdexec.c (_hurd_exec): Pass 0 flags to file_exec.
+	Pass sigcode arg to msg_sig_post.
+
+	* string/argz.h (argz_create): Use const in prototype.
+
+	* hurd/hurdinit.c (_hurd_proc_init): Test _hurdsig_traced instead of
+	testing (_hurd_exec_flags & EXEC_TRACED).
+	Pass sigcode arg to msg_sig_post.
+
+	* hurd/hurd.h: Declare _hurdsig_traced.
+
+	* string/argz.h (__argz_next): Cast ENTRY before returning it.
+
+	* hurd/hurd/signal.h (_hurd_critical_section_unlock): Pass sigcode arg
+	to msg_sig_post.
+
+	* hurd/path-lookup.c: New file.
+	* hurd/Makefile (routines): Add path-lookup.
+	* hurd/hurd/lookup.h: Declare file_name_path_scan,
+	hurd_file_name_path_lookup.
+	* hurd/hurd.h: Declare file_name_path_lookup.
+
+	* sysdeps/mach/hurd/select.c: The io_select rpc no longer has a TAG_ID
+	argument.  Instead, use a separate reply port for each RPC and put them
+	all in a port set to wait for slow replies.
+
 	* intl/Makefile (CPPFLAGS): Change $(nlsdir) to $(i18ndir) in
 	LOCALE_ALIAS_PATH.
 
diff --git a/hurd/Makefile b/hurd/Makefile
index af3ba2dad1..3a9d08e4a4 100644
--- a/hurd/Makefile
+++ b/hurd/Makefile
@@ -42,6 +42,7 @@ server-interfaces	:= hurd/msg
 
 routines = hurdstartup hurdinit \
 	   hurdid hurdlookup hurdpid hurdrlimit hurdprio hurdexec \
+	   path-lookup \
 	   setauth \
 	   pid2task task2pid \
 	   getuids setuids getumask fchroot \
diff --git a/hurd/catch-exc.c b/hurd/catch-exc.c
index 72e06db1d3..8ab38a2a61 100644
--- a/hurd/catch-exc.c
+++ b/hurd/catch-exc.c
@@ -1,4 +1,4 @@
-/* Copyright (C) 1994, 1995 Free Software Foundation, Inc.
+/* Copyright (C) 1994, 1995, 1996 Free Software Foundation, Inc.
 This file is part of the GNU C Library.
 
 The GNU C Library is free software; you can redistribute it and/or
@@ -64,7 +64,7 @@ _S_catch_exception_raise (mach_port_t port,
 	 no code should do anything that can fault while holding the
 	 sigstate lock.  */
 
-      ss->critical_section = 0;
+      __spin_unlock (&ss->critical_section_lock);
       ss->context = NULL;
       __spin_unlock (&ss->lock);
     }
diff --git a/hurd/dtable.c b/hurd/dtable.c
index ea683d0b0d..d1ee999857 100644
--- a/hurd/dtable.c
+++ b/hurd/dtable.c
@@ -1,4 +1,4 @@
-/* Copyright (C) 1991, 1992, 1993, 1994, 1995 Free Software Foundation, Inc.
+/* Copyright (C) 1991, 1992, 1993, 1994, 1995, 1996 Free Software Foundation, Inc.
 This file is part of the GNU C Library.
 
 The GNU C Library is free software; you can redistribute it and/or
@@ -173,7 +173,7 @@ static void
 ctty_new_pgrp (void)
 {
   int i;
-  
+
   HURD_CRITICAL_BEGIN;
   __mutex_lock (&_hurd_dtable_lock);
 
@@ -226,7 +226,7 @@ reauth_dtable (void)
     {
       struct hurd_fd *const d = _hurd_dtable[i];
       mach_port_t new, newctty, ref;
-      
+
       if (d == NULL)
 	/* Nothing to do for an unused descriptor cell.  */
 	continue;
@@ -235,14 +235,13 @@ reauth_dtable (void)
 
       /* Take the descriptor cell's lock.  */
       __spin_lock (&d->port.lock);
-      
+
       /* Reauthenticate the descriptor's port.  */
       if (d->port.port != MACH_PORT_NULL &&
 	  ! __io_reauthenticate (d->port.port,
 				 ref, MACH_MSG_TYPE_MAKE_SEND) &&
 	  ! __USEPORT (AUTH, __auth_user_authenticate
 		       (port,
-			d->port.port,
 			ref, MACH_MSG_TYPE_MAKE_SEND,
 			&new)))
 	{
@@ -254,7 +253,6 @@ reauth_dtable (void)
 				     ref, MACH_MSG_TYPE_MAKE_SEND) &&
 	      ! __USEPORT (AUTH, __auth_user_authenticate
 			   (port,
-			    d->ctty.port,
 			    ref, MACH_MSG_TYPE_MAKE_SEND,
 			    &newctty)))
 	    _hurd_port_set (&d->ctty, newctty);
diff --git a/hurd/hurd-raise.c b/hurd/hurd-raise.c
index ad01ab9f89..59179da5f6 100644
--- a/hurd/hurd-raise.c
+++ b/hurd/hurd-raise.c
@@ -1,4 +1,4 @@
-/* Copyright (C) 1994, 1995 Free Software Foundation, Inc.
+/* Copyright (C) 1994, 1995, 1996 Free Software Foundation, Inc.
 This file is part of the GNU C Library.
 
 The GNU C Library is free software; you can redistribute it and/or
@@ -44,5 +44,5 @@ _hurd_raise_signal (struct hurd_sigstate *ss,
 
   /* Send a message to the signal thread so it
      will wake up and check for pending signals.  */
-  __msg_sig_post (_hurd_msgport, 0, __mach_task_self ());
+  __msg_sig_post (_hurd_msgport, signo, sigcode, __mach_task_self ());
 }
diff --git a/hurd/hurd.h b/hurd/hurd.h
index 55be1579fb..212db45753 100644
--- a/hurd/hurd.h
+++ b/hurd/hurd.h
@@ -76,6 +76,7 @@ extern int _hurd_exec_flags;	/* Flags word passed in exec_startup.  */
 extern struct hurd_port *_hurd_ports;
 extern unsigned int _hurd_nports;
 extern volatile mode_t _hurd_umask;
+extern sigset_t _hurdsig_traced;
 
 /* Shorthand macro for internal library code referencing _hurd_ports (see
    <hurd/port.h>).  */
@@ -183,6 +184,21 @@ extern file_t file_name_lookup_under (file_t startdir, const char *file,
 				      int flags, mode_t mode);
 
 
+/* Lookup FILE_NAME and return the node opened with FLAGS & MODE
+   (see hurd_file_name_lookup for details), but a simple file name (without
+   any directory prefixes) will be consecutively prefixed with the pathnames
+   in the `:' separated list PATH until one succeeds in a successful lookup.
+   If none succeed, then the first error that wasn't ENOENT is returned, or
+   ENOENT if no other errors were returned.  If PREFIXED_NAME is non-NULL,
+   then if the result is looked up directly, *PREFIXED_NAME is set to NULL, and
+   if it is looked up using a prefix from PATH, *PREFIXED_NAME is set to
+   malloc'd storage containing the prefixed name.  */
+extern file_t file_name_path_lookup (const char *file_name, const char *path,
+				     int flags, mode_t mode,
+				     char **prefixed_name);
+
+
+
 /* Open a file descriptor on a port.  FLAGS are as for `open'; flags
    affected by io_set_openmodes are not changed by this.  If successful,
    this consumes a user reference for PORT (which will be deallocated on
diff --git a/hurd/hurd/lookup.h b/hurd/hurd/lookup.h
index 6911b8f5b9..565ab317c8 100644
--- a/hurd/hurd/lookup.h
+++ b/hurd/hurd/lookup.h
@@ -1,5 +1,5 @@
 /* Declarations of file name translation functions for the GNU Hurd.
-Copyright (C) 1995 Free Software Foundation, Inc.
+Copyright (C) 1995, 1996 Free Software Foundation, Inc.
 This file is part of the GNU C Library.
 
 The GNU C Library is free software; you can redistribute it and/or
@@ -98,4 +98,33 @@ error_t hurd_file_name_lookup_retry (error_t (*use_init_port)
 				     file_t *result);
 
 
+/* If FILE_NAME contains a '/', or PATH is NULL, call FUN with FILE_NAME, and
+   return the result (if PREFIXED_NAME is non-NULL, setting *PREFIXED_NAME to
+   NULL).  Otherwise, call FUN repeatedly with FILE_NAME prefixed with each
+   successive `:' separated element of PATH, returning whenever FUN returns
+   0 (if PREFIXED_NAME is non-NULL, setting *PREFIXED_NAME to the resulting
+   prefixed path).  If FUN never returns 0, return the first non-ENOENT
+   return value, or ENOENT if there is none.  */
+error_t file_name_path_scan (const char *file_name, const char *path,
+			     error_t (*fun)(const char *name),
+			     char **prefixed_name);
+
+/* Lookup FILE_NAME and return the node opened with FLAGS & MODE in result
+   (see hurd_file_name_lookup for details), but a simple filename (without
+   any directory prefixes) will be consectutively prefixed with the pathnames
+   in the `:' separated list PATH until one succeeds in a successful lookup.
+   If none succeed, then the first error that wasn't ENOENT is returned, or
+   ENOENT if no other errors were returned.  If PREFIXED_NAME is non-NULL,
+   then if RESULT is looked up directly, *PREFIXED_NAME is set to NULL, and
+   if it is looked up using a prefix from PATH, *PREFIXED_NAME is set to
+   malloced storage containing the prefixed name.  */
+error_t hurd_file_name_path_lookup (error_t (*use_init_port)
+				    (int which,
+				     error_t (*operate) (mach_port_t)),
+				    file_t (*get_dtable_port) (int fd),
+				    const char *file_name, const char *path,
+				    int flags, mode_t mode,
+				    file_t *result, char **prefixed_name);
+
+
 #endif	/* hurd/lookup.h */
diff --git a/hurd/hurd/signal.h b/hurd/hurd/signal.h
index 1973bcdb3c..fdaafdf459 100644
--- a/hurd/hurd/signal.h
+++ b/